Browsing Norges arktiske universitetsmuseum by Author "Vikebø, Frode Bendiksen"

Now showing items 1-4 of 4

    • Climate-Driven Ichthyoplankton Drift Model Predicts Growth of Top Predator Young 

      Myksvoll, Mari Skuggedal; Erikstad, Kjell E.; Barrett, Robert T.; Sandvik, Hanno; Vikebø, Frode Bendiksen (Journal article; Tidsskriftartikkel; Peer reviewed, 2013-11-12)
      Climate variability influences seabird population dynamics in several ways including access to prey near colonies during the critical chick-rearing period. This study addresses breeding success in a Barents Sea colony of common guillemots Uria aalge where trophic conditions vary according to changes in the northward transport of warm Atlantic Water. A drift model was used to simulate interannual ...

    • Modelled drift patterns of fish larvae link coastal morphology to seabird colony distribution 

      Sandvik, Hanno; Barrett, Robert T.; Erikstad, Kjell E; Myksvoll, Mari Skuggedal; Vikebø, Frode Bendiksen; Yoccoz, Nigel Gilles; Anker-Nilssen, Tycho; Lorentsen, Svein-Håkon; Reiertsen, Tone; Skardhamar, Jofrid; Skern-Mauritzen, Mette; Systad, Geir Helge (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-05-13)
      Colonial breeding is an evolutionary puzzle, as the benefits of breeding in high densities are still not fully explained. Although the dynamics of existing colonies are increasingly understood, few studies have addressed the initial formation of colonies, and empirical tests are rare. Using a high-resolution larval drift model, we here document that the distribution of seabird colonies along the ...

    • Sjøfugl og marine økosystemer. Status for sjøfugl og sjøfuglenes næringsgrunnlag i Norge og på Svalbard 

      Fauchald, Per; Barrett, Robert T.; Bustnes, Jan Ove; Erikstad, Kjell E; Nøttestad, Leif; Skern-Mauritzen, Mette; Vikebø, Frode Bendiksen (Research report; Forskningsrapport, 2015)
      Denne synteserapporten beskriver hvordan endringene og fluktuasjonene i økosystemene i norske havområder påvirker næringsforholdene for sjøfugl. Disse endringene har konsekvenser for sjøfuglsamfunnene langs kysten, og tilstanden for mange bestander har blitt betegnet som kritisk. Selv om mange bestander går tilbake, er bildet langt fra entydig, og vi finner ingen enkle sammenhenger mellom tilstanden ...

    • The stress hormone corticosterone in a marine top predator reflects short-term changes in food availability 

      Barrett, Robert T.; Erikstad, Kjell E.; Sandvik, Hanno; Myksvoll, Mari Skuggedal; Jenni-Eiermann, Susi; Kristensen, Ditte Lyngbo; Moum, Truls; Reiertsen, Tone; Vikebø, Frode Bendiksen (Journal article; Tidsskriftartikkel; Peer reviewed, 2015)
      In many seabird studies, single annual proxies of prey abundance have been used to explain variability in breeding performance, but much more important is probably the timing of prey availability relative to the breeding season when energy demand is at a maximum. Until now, intraseasonal variation in prey availability has been difficult to quantify in seabirds. Using a state-of-the-art ocean ...